The South Fork Trailhead provides access to the South Fork Trail, a multi-use path open to hiking, biking, and equestrian traffic that follows an old forest road along the scenic South Fork Jacks River.

The trailhead is located off Forest Service Road 126 (Elliot Road) near Watson Gap, with parking for 2-3 vehicles at a small campsite; access requires an easy ankle-deep ford of the West Fork Jacks River.

The trail features gentle grades and easy river crossings, making it suitable for various skill levels, and provides access to Shadow Falls (a 20-foot waterfall) and connections to the Benton Mackaye Trail and Pinhoti Trail.